Pith Number

pith:EQWDT3NH

pith:1997:EQWDT3NHOIVG6W7NEYQAJOAHCY

not attested not anchored not stored refs pending

Evolution of the Luminosity Density in the Universe: Implications for the Nonzero Cosmological Constant

K. Sato (Univ. of Tokyo), T. Totani, Y. Yoshii

arxiv:astro-ph/9705014 v1 · 1997-05-05 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EQWDT3NHOIVG6W7NEYQAJOAHCY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:07:38.421902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

242c39eda7722a6f5bed262004b807163d2f7f54658b40adf4f24be884478670

Aliases

arxiv: astro-ph/9705014 · arxiv_version: astro-ph/9705014v1 · doi: 10.48550/arxiv.astro-ph/9705014 · pith_short_12: EQWDT3NHOIVG · pith_short_16: EQWDT3NHOIVG6W7N · pith_short_8: EQWDT3NH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EQWDT3NHOIVG6W7NEYQAJOAHCY \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 242c39eda7722a6f5bed262004b807163d2f7f54658b40adf4f24be884478670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16b1116c278a9bdc6424e6998da369831df904e8e18e7a9e069d5515ee04b9fd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-05-05T09:30:08Z",
    "title_canon_sha256": "ca31cb6eab3d187486f45b9e53333a064cbd763b0d0785578df9c5f721de46e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9705014",
    "kind": "arxiv",
    "version": 1
  }
}